| 8930718 |
Apparatus for and a method of providing content data |
Adrian Aylward |
2015-01-06 |
| 7865057 |
Method and apparatus for conveying rights across an analog video interface |
— |
2011-01-04 |
| 7624282 |
Method and apparatus for DVD copy protection with selective data pattern insertion |
— |
2009-11-24 |
| 7274790 |
Scrambling and descrambling a high definition TV signal |
John O. Ryan, James R. Holzgrafe |
2007-09-25 |
| 7124114 |
Method and apparatus for determining digital A/V content distribution terms based on detected piracy levels |
— |
2006-10-17 |
| 6950520 |
Method and apparatus for carrying data in a video signal so that the data is not recorded |
John O. Ryan, James R. Holzgrafe |
2005-09-27 |
| 6931536 |
Enhanced copy protection of proprietary material employing multiple watermarks |
— |
2005-08-16 |
| 6701062 |
Generational copy control of a video signal |
Johan Cornelis Talstra, Kordian Kurowski, David C. Collier, William J. Wrobleski, James R. Holzgrafe +4 more |
2004-03-02 |
| 6542609 |
Method and apparatus for scrambling a high definition television signal |
John O. Ryan, James R. Holzgrafe |
2003-04-01 |